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Finding the Fourth Proportional to 173,726.60, 260,589.90 and 90,609.80

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Solution

The fourth proportional to 173,726.60, 260,589.90 and 90,609.80 is: 135,914.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,726.60 : 260,589.90 = 90,609.80 : x
  2. Step 2: Convert to fraction form
    173,726.60/260,589.90 = 90,609.80/x
  3. Step 3: Cross multiply
    173,726.60x = 260,589.90 × 90,609.80
  4. Step 4: Simplify right side
    173,726.60x = 23,611,998,721.02
  5. Step 5: Solve for x
    x = 23,611,998,721.02/173,726.60
  6. Step 6: Final answer
    x = 135,914.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.